immutable

The definition of immutable is not able to be changed.

(adjective)

An example of immutable is something that has happened and cannot be reversed.

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See immutable in Webster's New World College Dictionary

adjective

never changing or varying; unchangeable

Origin: ME < L immutabilis: see in- & mutable

Related Forms:

See immutable in American Heritage Dictionary 4

adjective
Not subject or susceptible to change.

Related Forms:

  • im·muˌta·bilˈi·ty, im·muˈta·ble·ness noun
  • im·muˈta·bly adverb

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